# Search results of SQL query from the Crystallography Open Database # Date and time performed: 2026-01-27T15:41:51+01:00 # Query: # SELECT data.* # FROM # data JOIN jaltnames # ON altname = journal # WHERE # (status is null or status != 'retracted') and # (journal_id IN (SELECT DISTINCT(journal_id) FROM jaltnames WHERE altname LIKE 'Ferroelectrics') AND volume = 4 AND duplicateof IS NULL AND (status is NULL OR status != 'errors') AND (method is NULL OR method != 'theoretical')) # ORDER BY file asc file,a,siga,b,sigb,c,sigc,alpha,sigalpha,beta,sigbeta,gamma,siggamma,vol,sigvol,celltemp,sigcelltemp,diffrtemp,sigdiffrtemp,cellpressure,sigcellpressure,diffrpressure,sigdiffrpressure,thermalhist,pressurehist,compoundsource,nel,sg,sgHall,sgNumber,commonname,chemname,mineral,formula,calcformula,cellformula,Z,Zprime,acce_code,authors,title,journal,year,volume,issue,firstpage,lastpage,doi,method,radiation,wavelength,radType,radSymbol,Rall,Robs,Rref,wRall,wRobs,wRref,RFsqd,RI,gofall,gofobs,gofgt,gofref,duplicateof,optimal,status,flags,svnrevision,date,time,onhold "1526126","15.119","","4.58","","15.119","","90","","117.86","","90","","925.57","","","","","","","","","","","","","4","P 1 n 1","P -2yac","7","","(N H4) (H S O4)","","- H5 N O4 S -","- N O4 S -","- N8 O32 S8 -","8","4","","Nelmes, R.J.","The structure of ammonium hydrogen sulphate in its ferroelectric phase and the ferroelectric transition","Ferroelectrics","1972","4","","133","140","","","","","","","","","","","","","","","","","","","","","","has coordinates","176429","2020-10-21","18:00:00","" "1526568","3.642","","5.653","","5.375","","90","","90","","90","","110.662","","","","","","","","","","","","","3","I m 2 m","I -2 -2","44","","Na (N O2)","","- N Na O2 -","- N Na O2 -","- N2 Na2 O4 -","2","0.25","","Kay, M.I.","The structure of sodium nitrite at 150, 185, 225 C","Ferroelectrics","1972","4","","235","243","","","","","","","","","","","","","","","","","","","","","","has coordinates","301777","2025-08-18","15:08:08",""